Educational toy



J. BBANDVEXN,

DJEATiONAL WY.

@Hummm mi@ APB. 2m 1921.

Patented May '2, 1922.

ZSiTS--SHEET i V l Mi, I

I. M. BRANDVEIN.

EDUCATIONAL TOY.

APPLICATION FILED APR.29 1921.

Patented May 2, 1922.

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FQNDVE/N A TTHNEYS To all whom it Imay concern:

mrs-b i u'coa'x. naaimvnm, or Naw Yoan, N.

Be it known that I, J Aoon M. BRANDVEIN, a citizen of the United States, and a resident of the city of New York, borou h of Bronx, in the county1 of Bronx and York, have invented a new and Improved Educational To of which the 4following is a full, clear, yan exact description. A

This invention relates to improvements in educational toys,.the primary object of the invention being to provide a toy calculator, which will aid in teaching children the multiplication tables. 1 l

One disadvantage of most of the patented toys of this character is the fact that more than one problem is visible at a time, so that a child sees a inultiplicit of problems and answers displayed simu taneously and is therefore unable to concentrate his or her` exposing the answer to the problem after the child has mentally solved or attempted to vsolve the problem.

Another object is to provide a toy which will be simple and practical in construction, neat and attractive inA appearance, strong and durable in use, and comparatively inexpensive to manufacture.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements ot parts, as will be more fully --hereinaiter described and pointed out i v my improved toy;

the claims. v,

In the accompanying drawings Figure 1 is a view in frontelevationof Figure 2 is a view in section therethrough l on the line 2--2 of Figure 1; and

Figure 3 is a plan view illustrating the relative position of the discs 7 and 7.

Referrinol in detail to the drawings, 1 represents are ativel'y fiat and substantially rectangular casing. U on the front face of the casing, there is disp ayed any preferred design indicated generally by the reference numeral 2. vAlthough I do not wish to limit myself to any particular design, it might be noted vthat a design which includes a centrally disposed representation of ablack v I Specicatton of Letters Patent.

tate of New l l nDUcATIoNAL '.ror.

i board in a school room scene and a repre-- sentation of` a teacher ,pointing toward the blackboard willtend to draw attention imratented May 2,1922. application nica april 29,1921. serial No". mais." i

mediately toward the blackboard. In the y representation of the blackboard, there isv provided arelatively long horizontal slot 4 and adjacent thereto, a short slot\ 5. The problem is exposed through the slot 5 and the `answer appears through the longer slotL/l.

On each side of therepresentation of the blackboard, an arbor 6 is provided extendin transversely across the Vcasing and discs g and 7' are mounted on the arbors. The peripheries of the discs are formed with thumb receiving recesses such as -8. The outer edges of the discs extend through slots 9 in opposite ends of the casing and the inneredges of the discs overlap, the disc 7 bein located in front of the disc 7".

The disc 7 has ldisplayed thereon around its center, an annular series of numerals such as 10, ranging preferably from 1 to 12 and arranged in regular sequence. Besides each numeral a conventional times sign in the form of an X is displayed. Adjacent each times sign and between the said sign and the peripher of the disc are openings 11, so that an annu ar series of such o enings are provided outside of the ring ci) numerals 10. The disc 7 is also provided with a spiral series of arcuate openings or slots such as 12, each opening 12 being located in the' lnumeral 10 is located nearest the center of fthe disc 7 and that opening 12 which is aligned with the lowest numeral 10 is locatedI furthest from the disc 7. Any one of the numerals 1() with its times sign may be exposed through the opening 5 in the casing by rotating the disc 7 and the corresponding opening 11 will register with the opening 5 and expose a numeral on the edge of the disc 7 The numerals 10 represent the multi liers in a problem. The numerals on the disc 7 exposed through the openings 11 represent the multiplicands. When one of the openings 11 is in registry with the openin 5, then the .corresponding opening 12 wil vbe p in registry with the slot 4 and will expose a numeral on the disc 7 ,-which represents the product of the multiplier and multipliand as be ore noted, represent the multilicand in a problem of multiplication. adial series of numerals such as 14 located along the same radial axes as the numerals 13 are displayed on the disc 7 This radial series of numerals contains the multiples of the numerals 13 with which they are. aligned,

the least multi les being displayed in an annular series adjacent the center of the disc 7 and adapted to register with the innermost 'openin 12 and the greatest multiples being located in an annular series furthest removed from the vcenter of the disc 7 and adapted to selectively register with the outer-most opening 12.

These numerals represent as above noted,

the products of the multipliers 10r and the multiplicands 13, so that when one of the multipliers is exposed in the slot', and any desired multiplicand through the slot 5 and one of the openings 11, then the product will be exposed through the slot 4, and one of the openings 12.

Pivotedwithin the casing on one of the arbors 6, is an angular lever15 which i1icludes at one end an oiset handle member 16 movable through a slot 17 adjacent the corner of thecasing. A spring 18 normally retains the other end o'f'the llever which is in the form of a shutter in position behind the slot 4 to conceal the answer to Vthe problem ex osed through the slot 5. v This end of the ever includes arecess such as 19, at

all times re isterin with the slot 5, so that thel multip 1er an multiplicand are constantly exposed.

It will be readily seen that by turningthe discs any problem of'multiplication may bev set up in the slot 5 and that after the' child has mentally calculated the results, the handle 16 is actuated to move the shutter to one side and expose the correct ansver throu h the slot 4. Y l

v Alt ough I have illustrated one of the preferred embodiments of my invention, it will be apparent that variousslight changes and a-lterations might be made 1n the general form and arrangement'of the parts described without de arting from the invention,rand hence I, o not wish to limit myself to. the precise details set forth,` but shall consider myself(` at liberty to make such v slight changes and `resenting a multiplican opening, the product of said kmultiplier and p -ic within the claims.

1.y A toy of the character described, including a casing, having a pair of openings therein, discs mounted' to rotate in the casing and having numerals and arithmetical signs thereonadapted to re 'ster with the openings upon rotation of t e discs, means spirit and scope of the appended whereby rotation of the discs to expose the problem in one opening automatically moves the numeral representmg the answerV to the problem into registration with the other o ening, and a springheld shutter norma ly concealin said answer.

2. A toy o the'character cluding a casing, having a therein, discs in the casin aving numerals displayed thereon adapte to be selectively exposed through the openings upon rotation of the discs, said numerals and openings so arranged that when one of Asaid discs is move to expose a numeral representing a described in-A pair ofv openings multiplier through one opening and the other` disc is moved to expose 'a numeral representing a multi licand through the same opening, the pro uct of said multiplier alteration-s as fairly fall and multipllcand willbe exposed through 1 the other openin 3. Aj 'toy of t echaractergdescribed including a casing, having a air of openin therein, discs in the casing' aving numera s displayed thereonv adapted to be selectively exposed through the openings /upon rotation of the discs, said numerals and o nings sov arran ed that when one of sai discs is move to 'expose a numeral representing a multiplier -through one opening 1and the other disc is moved to exfpose a numeral repthrough the same multi and will be exposedl through lthe other opening, and a springheld shutter normally located between said last mentioned openings and the disc to conceal the numeral re resenting the product.

4Q A device of the character described includin a relatively flat casing having a air'` o o mn in one face thereof, arbors ]ournale in t e casing, discs mounted on 

